A ROD based Fuzzy packet loss differentiating algorithm for TCP in the hybrid wired/wireless network

A fuzzy pattern recognition loss differentiating algorithm in hybrid wired/wireless network is proposed, which distinguishes losses due to congestion from losses due to wireless error by ascribing the loss to the most likely pattern, congestion or wireless error, based on the packet ROD feature. The loss nature differentiating is a fuzzy problem, different reasons can influence the judgment at the same time, but all most the current researches take simple two values logic to this problem, so it is hard for them to get satisfying performance. In this paper, we take fuzzy pattern recognition logic on this fuzzy question based on the ROD feature of the probing packet in the loss pair. Simulation shows it performs better than the current TCP mechanism.